Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cf14afa4a547abc…

MALICIOUS

PDF

71.2 KB Created: 2020-08-31 04:08:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: feed245f56d25ffd6cb045ee79b31067 SHA-1: c09ac8eeae9f8a6339e0f7fe81ea8e971e2f7c72 SHA-256: 8cf14afa4a547abcd1c47911f33cbbd6f6e8628ac6fcdd3af8e4411b6147afe4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. It also exhibits characteristics of a PDF link farm, with numerous links to PDFs hosted on Shopify. The document body contains the malicious URL, suggesting an attempt to trick users into clicking it. The primary attack pattern involves luring users to a malicious site via a link farm.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/wix?keyword=a+hist%25C3%25B3ria+de+keesh+por+jack+london
    • https://cdn.shopify.com/s/files/1/0435/1403/6376/files/administrative_systems_and_procedures.pdf
    • https://cdn.shopify.com/s/files/1/0439/2547/1400/files/rokerojasoxebudixoxam.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/metegemekipezafekude.pdf
    • https://cdn.shopify.com/s/files/1/0430/9745/6801/files/72439968990.pdf
    • https://cdn.shopify.com/s/files/1/0430/0662/3903/files/16241519368.pdf
    • https://cdn.shopify.com/s/files/1/0430/7851/6885/files/govomorizixagujuka.pdf
    • https://cdn.shopify.com/s/files/1/0431/2186/8960/files/90562861637.pdf
    • https://cdn.shopify.com/s/files/1/0432/5320/3102/files/99404508160.pdf
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/tijeve.pdf
    • https://cdn.shopify.com/s/files/1/0430/4276/7001/files/77275959464.pdf
    • https://cdn.shopify.com/s/files/1/0431/6079/7333/files/late_night_interbridge.pdf
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/2011_hyundai_sonata_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0440/5785/4102/files/fovaxokatisidago.pdf
    • https://cdn.shopify.com/s/files/1/0431/6138/7170/files/wujabimuwixomepateleze.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d78a.bin
b2e0b4dd7752fc8f746fef7b537008b946189003a8afd144944bb10992c4ae70		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD78A 5424 bytes
font_01_sfnt_off0000e9b7.bin
f688a9fe6493de50fc1658d397270358e11a685a94c33b560eccf4248414340b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B7 10564 bytes

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